George b



(No Model.) I 2Shets-Sheet 1'3 G. .B. WEBB.

TYPE WRITING MAGHIEE.

v No. 559,089. Patented A fzs, 1896.

INVENTOR A war;

ATTORNEY (No Model.) 2 Sheets-S heet 2. v

G. B. WEBB. TYPE WRITING MAGHINEE No. 559,089. Patented Apr. 28, 1896.

wwpv w WITNESSES:

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' 'NHE/ TAT-ES or NEW YORK, N. Y.,' ASSIGNOR To run Yosrwnrmre. MACHINE COMPANY, or SAME PLACE.

TYP -Maurine MACHIN E.

SPECIFICATION forming part of Letters Patent No. 559,089, dated April 28, 1896.

Application and March 27, 1894.

To all whom, it may concern:

, Be it known that I, GEORGE B. VEBB,fa

' citizen of the United States, and a resident of New York city, in the county of New York and Stateof New York, have invented certain new and useful Improvements in Type- VVriting Machines, of which the following isa specification. My invention relates to the paper-carriage feeding or escapement mechanism and to the paper-carriage-releasing mechanism which coacts therewith, and has for its main obfrom the right-handside.

larg'ed top plan view of the arm or bracket jects to provide simple, durable, and effective which supports the escapement-dogs. Fig.

' 5"is'a central vertical section on the line zz of Fig. i, with a feed-rack added and with the dogs in their abnormal position. Fig; 6 is a vertical section taken at the line a; to y of Fig.

' i and looking in the direction of the arrow'at :11. Fig: 7 is a vertical section on the line y to .r of Fig. 4 and looking in the direction of the arrow at 12, and Fig. 8 is a detail view of the feeding or spacing dog. and its plate or support.

In the several views the same parts will be found designated by the same numerals of reference.

. on the top plate 1 of the machine is mounted on each side and at the rear a post 2, and on each side at the front a post 3. 'lothe posts 2 is secured a round guide rail 4, and to the posts '3 is attached a track or way 5. '6 is a yokearranged to slide on the guide-rail 4 and provided "with inwardly-extending ears 7,

which are perforated for the passage of the;

back rod 8.of.the papeiicarriage, said rod be- I Serial No. 505,284. (No model.)

'ently of said yoke by means of two collars 9, screwed to said rod and arranged one on the outside of eacliof said lugs and abutting there-.

against. The said back rodS while thus held" in a fixed position relatively to the yoke may,

nevertheless, be turned in the eyes or bearings in the lugs7, in order that the papers carriage may be lifted or swung upwardly, as upon a hinge-joint, for the purpose of inspectand 11 of the carriage is mounted to rotate a 6 5 cylindrical platen 12, and upon the front bar 13 is secured a small bracket 14, containing an antifrietion-wheel 15, which travels upon the track or way 5. p

Projecting rearwardly from each of the yokes is a lug 16, and to these lugs are fastened by screws 17 forwardly-projecting portions 18 of a horizontally-arranged bar '10, which carries on its under side a toothed rack 20, attached to said bar by screws 21. The rearmost-edge of the bar 19 bears and rides against anoverhanging roller 22 on a pin projecting inwardly from a stand 23, which is attached by screws 24 to a bracket 25, that is I secured by serews26 to the top plate, at the rear and centrally of the machine. The said bracket extends first upwardly and then inwardly at right angles, and at this portionis branched or formedwithtwo curved arms 27, whichmeet at the front and from which ex- I tends preferably a shank or arm 28, carrying at its forward end a center guide 29, as usual in the Yost machine.

i In the space or openingbetween the arms' 27 is arranged a trunnion or rocker. 30, supo ported at either end bya conically-pointed screw 31, horizontally arranged and held against casual displacement by a vertical setscrew Projecting rearwardly from the center of the trunnion is an arm 33, to the 5 forked outerend of which is pivoted the uppermost endof a vertically-arranged pull-rod 34:, which, as in the Yost machine, is connected to the'universal'bar and finger-key mecl1- anism. (.Not'shown.)"Projectingdownwardly r-oo from a boss35'on the stand 23 is 'a screw 36," l

which forms an adjustable stop for the a r:

' to strike against on its return movement and thus limit the forward rocking movement returning action of itsspring, (not: shown;)

but which, as well known in the 'Yost machine, is arranged under the base-plate of the machine and connected to oppose and return the actuating-rod 34*and its connections.

In a rec'tangular notch at the upper portion of the trunnion is afiixed by a screw 37 a dog 38, adapted to engage with thefeed-rack 20, and hereinafter described as the rigid or detaining dog. On the rear side of the trunnion is attached loosely a plate or support 39, which at its upper end carries another dog 40, adapted to also engage said feed-rack,

and known hereinafter as the yielding? or feeding dog. The said plate or support 39 is provided with a slot 4:1,at itsvlower end,

through which passes an attaching-screw 42,

whose point entersa threaded hole 43 in the; trunnion, and thesaid plate or support is formed at its upper end with another slot or cut-away 44,sli ghtly wider than the slotetl ,but arranged in-alinement therewith. Through this upper slot passes another screw 45, whose threaded point engages a tapped hole 46 in the trunnion. The heads of the screws 42 and 45am. larger in diameterthan the widths of the slots, and hence prevent any accidental lateral detachment of the plate, while at the sametime permitting said plate to slide freely up and down and also to oscillate. To a pin or stud onsaid plate at its lower end is connected one -end of a wire spring 417, which is wound about'a screw 48in the trunnion and bears at its other end against a fixed pin 49 therein. This spring performs the two-fold function of lifting said plate on release of the force employed to depress it and also of oscillating or vibrating the said plate about the screw 42 as a pivot when the feeding-dog is vibrated from the rack, as will hereinafter more fully appear.

The feeding-dog 40 is preferably pivotally mounted upon the plate 39, in order that the carriage may be returned as noiselessly as possible, but as far the main feature invention is concerned this dog may be applied fixedly to'said plate or be made integral therewith. In the construction shown the shank of the dog is provided wiih two depending ears 50, and between these bars the stock is milled or cut away through to the top of the shank, as iinlieated at oi. lute this milled or cut-away portion extends dig 52 on the upper end of the plate, which is perforated to coincide with perforation? in. the cars andrcceivea transverse pivotpin 5 In the top of the plrne I? is formed a recess 5i to receive the lowerond oi a coiled springfifi,whiehatitsnpperer against the under side of the shank of the dog 40 in front of the pivot 53, and to eause'the rear in y .end of the shank to normally abut against a to codperate with the ieed-rack during the printing operation. During the return of the carriage to the right, as for the beginning of v a new line, the teeth of 'the rack slide over during the r turn movements of the carriage by a push or uii thereupon the plate 39 is not moved, but only the small vibratory dog, and

that hence the movement of the carriage is accomplished with little or no noise.

. Before describing the carriage releasing mechanism I shall first describe the mode of operation of the carriage feeding devices above referred to, it being understood that the paper-carriage is connected as usual to a spring-power or driving-dru 1n tending always to move the carriage toward the left. I have 'shown merely in outline the spring-drum 5'7 and the cord or chain 58 running therefrom to the paper-carriage.

At'Fig. 3 it will beobserved that the feeding or yielding dog' 40 stands in engagement with the feed-i'ack-QO, connected to the papercarriage, and at this time the said dog operates to hold the paper-carriage against moveits driving-spring. If a character-key or a space-key be struck, the rod 34 is pulled down, the trunnion rocked reaswardly, and the dog 40 carried out of engagement with the rack, and the rigid or detaining dog 38 into engagement with the rack and just before the ment toward the left under the influence of,

complete escape of the dog 40, so that during this stroke of the finger-key the carriage is still maintained in its arrested condition, as shown at Fig.

Upon release of the finger-key the returning-spring before referred to'operates to lift the rod 34 and rock the trunnion in the reverse direction or back to the position shown at Fig. During this movement the feeding-dog engages the rack just before the disengagement of the detaining-dog, and as soon as the latter has departed entirely from the rack the spring-drum is enabled to feed the carriage one letter-space distance, or the distance from centsr to center between two teeth of the rack. The Feed is accomplished in the following manner. \Vhen the .rod 3i is pulled down and the dog 40 vibrated from the rack, the said dog is instantly thrown toward the right (standing at the front of the machine) the distance of one tooth, by reason of the oscillation ortilting of theplate 39 by the spring 47, which acts to turn said plate about the screw 42 as a pivot until the side 59 of the slot 44 strikes against the screw i5. the rod 3-1 is released and returned by its screw 45.

spring, the dog hence enters the next notch on the right as the trunnion rocks forward.

At the time this takes place the driving-spring is free to act, and in pulling upon the carriage and the rack the dog 40 is carried to the left one letter-space and then arrested, the

plate at this time oscillating toward the left with the dog. The plate,'the dog, and the carriage are all stopped in this movement by reason of the right-hand side of the slot as coming into contact with the shank ofthe From this it will be understood that the plate 39 at the slot 44 has a throw in either direction equal to the width of one letter-space, or the distance between two teeth on the rack from center to center, and it will also be understood that duringfthe movements of the plate with the dog eO'toward the left under the feeding action of the 4 carriagevsp'ring the spring A7 is put under tension, and hence will operate to again throw the plate and the dog toward the right when the latter is nextvibrated from the rack in the printing operation.

I shall now describe the construction and operation of the carriagereleasing mechan ism. Grosswise of the trunnion is made a hole 61, throughwhich projects from the front .side of the plate 39 a pin or stud 62, which is preferably provided at its free protruding end with an antifriction-roller 63, held in placepreferably against a shoulder on the pin by a nut 64, The opening 61 in thetrunnion is sufficiently large toperinit the pin to move up and down therein a sufiicicn't distance to move the plate a distance equal about to one-half of the length of the slot 41,

which is sufficient to carry the dog 40 vertically into and out otengagement with the feed-rack.

- be depressed to carry down the plate 39 and dog 40 by a bar of substantially the length of the platen and arranged parallel there with. The said barislpivotally connected at one end, atGG, to the end of .the horizontal arm of a bell-crank 67, and said bar (35 is pivotally connected at near its opposite end, at

(38, to the end of the horizontal arm of another bell-crank 69. The bell-crank 67 is pivoted at 70 to a hanger 71, which is secured by a screw 72 to the-rear edge of the left-hand lug 16, and the bell-crank 69 is pivoted at 73 to a hanger 74 similarly secured. to the righthand lug 1t.

To'the upper ends of thevertical arms of the bell-cranks 67 and 69 are riveted or otherwise secured rcarwardly projcctiu g bosses 75, which are perforated transversely for the pa'ssage-therethrough of a long round rod 7 (3, which is preferably secured in said bosses by means of horizontally-arranged set-screws 77, the bosses being interiorly threaded to. receiv'e them.. The rod 76 atits left-hand end is bent 'to "extend forwardly and over. the guide-rail 4, and then laterally and parallel with' the guide-rail fora-short distance, as at Normally the pin rests at the upper end of the opening 61 and is adapted to 78. This portion 7a lies'in the plane of the hinge-joint of the paper-carriage and forms a pivot, aboutvwhichan actuating-lever 79 may swing when the carriage is turned, up for inspection of the Worli, &c. The said lever is verticallyfpivoted at 80 in a bracket 81, extending laterally from the sidebar ll of the carriage. About this pivot is coiled a spring 82,0ne end of which is attached to a collar or head 83 on said pivot,and the other end to'the lever 79, and is provided for the purpose of retracting said lever and its con nected parts. The rearmost end of the lever is provided with a vertically-arranged bifurcated lug 84, which is perforated transversely to receive the pivotal portion 78 of the rod -76.- Between the-forks of the lug 84 is arranged a washer or filler 85, which is secured upon' said pivot 78 by a screw and forms an abutment for the forks to act against when the lever is actuated to move the rod 76 endwise.

The release-bar 65 stands normally above and out of contact with the roller 63, butwhen it. may be desired to release the escapement mechanism for the purpose of moving the carriage quickly toward the left,or, in fact, in either direction, the finger-piece 86 at the. forward end of thelever 7 9 is pressed toward (the end bar 11, and thereby the rear shorter arm of said lever is moved toward the left and carries with itin the same direction the rod 76, which in this movement operates to rock the bellcranks and thereby cause the releasebar to descend bodily and carry dQ\Yll YVlllh it, by contact with. the reller 63, theplate 39, and

ICC

thus remove the dog 40'from engagement with l the rack. W'henthis is accomplished and while the finger-piece of the lever is still held toward or against the end bar 11, the carriage is free to be moved rearWardly-in either direction-toward the left by the unrestrained powerof the driving-spring, and toward the right by the pull or push of the operator.

is always maintained in a horizontal position,

whether up or down, and hence during the movements of said'bar over the antifrictionroller at the time the carriage is being moved rapidly, after the release has been effected, the dog 40 is always kept depressed to a given point and at a sufficient distance below the teeth of the rack to prevent any accidental reengagement during said rapid movements of the carriage. i

By reason of mounting the plate 39 so that it has a vertical movement, or a substantially straight np and-downmovement, the dog '40 v on its upward re'ngaging movement is adapted to arrest the carriage at exactly a given point or instantaneously, as it is designatedthat is to say, if thecarriage bereleased when the pointer is at .10, for instance, on the front scale, and it bedesired to rearrest it at, say, 50, the'construction is such that if the pressure upon the release key or lever is re moved when the pointer arrives at 50 the.

dog 40 will immediately enter the notch corresponding to 50 and at once stop any fur-' thei movement of the carriage, instead of, as in many prior machines, permitting the carriage to feed one or more letter-spaces until they dog is straightened up or carried against its left-hand stop, whereby in such cases the carriage instead of stopping just where it is lVl1at Iclaim as new, and desire to secureby Letters Patent, is-

1. In a type writing machine, the combination with the paper-carriage having a feedrack, of a rocking detaining-dog, and a feed ing-dog having a rock in g motion similar to the detainingwlog at right angles to the feedingrack, and also an oscillatory motion longitudinally of the feed-rack and to the right, as well as an independent straight up-and-down sliding bodily movement. 1

2. In a type-writing machine, the combina tion with the paper-carriage having a feedrack, of a rocker or trunnion carrying a detaining-dog, and a feeding-dog loosely sup-- ported on said rocker or trunnion and guided to havca straight up-and-down bodily movement at right angles to the axis of motion of the rocker.

In a type-writing machine, the combination with the paper-carriage having a feedraek, of a rocker or trunnion r -ying a dctaining-dog, and a feeding-dog o. a verticallymovablc plate or support loosely connectml to said rocker or trunnion, and having .in up-and-down sliding movement, and means for guiding said plate or support. 4. In a t3'pe-writing1r 'l1ino,ihe COllll iH;i non will; the paperhaving a feed Par-h, (iii it i'mf'licl or taining-dog, a plate or support carrying a feedin g dog and provided with vertical slots,

guide pins or screws passing through said ing-dog and provided with vertical guides to cause the same to slide straight upand'down, in the releasing movements, a pivot for said plate or support and said dog to oscillate about in the feeding movements, and a spring to eli'ect the oscillation of saidplate in one direction. o r

6. In a type-writing machine, the combination with-the paper-carriage having a feedraek, ofi arocker or trunnion carrying a detaining-dog, a plate or support carrying a feeding-dogand loosely connected to and vertically guided upon said rocker or trunnion, a pivot about which said plate or support oscillates, a spring for oscillating said plate or support to the right, a stop for limiting this movementfand a stop for limiting its movement in the opposite direction during the feed of the carriage.

7. In a type-writing machine, the combination with the paper-carriage having a feedrack, of a-rocker or trunnion carrying a detaining-dog,aplate or support carrying a feeding-dog and having the slots 41 and ii, the screws or pins 42 and 45, and the spring l7.

' S. In a t Y )e-writin machine the combination with the paper-carriage having a feedraclc, of a rocker or trunnion carrying a detaining-dog, avertically-movable feeding-dog also connected to said rocker or trunnion and guided to slide bodily thereupon, a lateral pin' or projection connected to said verticallymovable dog, and a vertically-movable release-bar connected to the paper-carriage.

ii. In a type-writing machine, the combination with the paper-carriage having a foodrack, of a rocker or trunnion carrying a dctaining-dog, a plate or'supportcarrying a feeding-dog and provided with slots l1 and ii, the screws .42 under), the spring 4-7, the lateral pin or projection (52, the vertically-movable release-bar connected to the paper-carriage, and means for depressing and elevating said bar Sr'ncdat New York city, in the county of New ori: and Slate of New York, this 233d day of Iiiar h, A. l). 1394.

GEORGE l3. \Jliilli. l'i'ilnosscs: ,Lu'nr. Finn-n51), l. (I T'iiwnmuin 

